Contents

require "yaml"
require "zlib"
require "expressir/model"

module Expressir
  module Express
    class Cache
      # Save Express model into a cache file
      # @param file [String] cache file path
      # @param content [Model::ModelElement] Express model
      # @param root_path [String] Express repository root path, to be stripped from Express file paths to create a portable cache file
      # @param test_overwrite_version [String] don't use, only for tests
      # @return [nil]
      def self.to_file(file, content, root_path: nil, test_overwrite_version: nil)
        version = test_overwrite_version || VERSION

        cache = Model::Cache.new(
          version: version,
          content: content,
        )

        hash = cache.to_hash(root_path: root_path)
        yaml = YAML.dump(hash)
        yaml_compressed = Zlib::Deflate.deflate(yaml)

        File.binwrite(file, yaml_compressed)
        nil
      end

      # Load Express model from a cache file
      # @param file [String] cache file path
      # @param root_path [String] Express repository root path, to be prepended to Express file paths if loading a portable cache file
      # @param test_overwrite_version [String] don't use, only for tests
      # @return [Model::ModelElement] Express model
      def self.from_file(file, root_path: nil, test_overwrite_version: nil)
        version = test_overwrite_version || VERSION

        yaml_compressed = File.binread(file)
        yaml = Zlib::Inflate.inflate(yaml_compressed)
        hash = YAML.safe_load(yaml)
        cache = Model::ModelElement.from_hash(hash, root_path: root_path)

        if cache.version != version
          raise Error.new("Cache version mismatch, cache version is #{cache.version}, Expressir version is #{version}")
        end

        cache.content
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
expressir-2.1.3	lib/expressir/express/cache.rb
expressir-2.1.2	lib/expressir/express/cache.rb
expressir-2.1.1	lib/expressir/express/cache.rb